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14000108731 = 728133121503
BaseRepresentation
bin11010000100111100…
…01011010010111011
31100010200200012201121
431002132023102323
5212133011434411
610233114530111
71003635650350
oct150236132273
940120605647
1014000108731
115a347729a4
122868736937
13142164950b
1496b504627
1556e155571
hex34278b4bb

14000108731 has 16 divisors (see below), whose sum is σ = 16106323968. Its totient is φ = 11920708800.

The previous prime is 14000108723. The next prime is 14000108743. The reversal of 14000108731 is 13780100041.

It is not a de Polignac number, because 14000108731 - 23 = 14000108723 is a prime.

It is a super-2 number, since 2×140001087312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14000108696 and 14000108705.

It is not an unprimeable number, because it can be changed into a prime (14000108711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640326 + ... + 661828.

It is an arithmetic number, because the mean of its divisors is an integer number (1006645248).

Almost surely, 214000108731 is an apocalyptic number.

14000108731 is a deficient number, since it is larger than the sum of its proper divisors (2106215237).

14000108731 is a wasteful number, since it uses less digits than its factorization.

14000108731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22122.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 14000108731 its reverse (13780100041), we get a palindrome (27780208772).

The spelling of 14000108731 in words is "fourteen billion, one hundred eight thousand, seven hundred thirty-one".

Divisors: 1 7 281 331 1967 2317 21503 93011 150521 651077 6042343 7117493 42296401 49822451 2000015533 14000108731